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Intel Core i7-660LM

Intel 660LM

The Intel Core i7-660LM is a fast middle class low voltage dual core CPU for laptops and clocks (due to the Turbo Mode) from 2.27 to 3.07 GHz. Each core is based on the Nehalem (Westmere) micro-architecture. Hyperthreading enables the Dual Core CPU to handle 4 threads at once (for a better usage of the pipeline).  All features (like Virtualization VT-x and VT-d, Trusted Execution) of the Arrandale core are activated in the 660LM. Compared to the Core i7-620M, the 660LM is slower but more power efficient.

A feature of the new Core i7-660LM is the integrated graphics card (called Intel HD Graphics) and memory controller. Both are on a separate die that is still manufactured in 45nm whereas the CPU die is already manufactured in the new 32nm process.

Due to the integrated memory controller, the HyperThreading and Turbo Boost, the  Core i7-660LM is faster than a similar clocked Core 2 Duo in all (us known) applications and benchmarks. The performance should be somewhere on the level of the Core i3-380M and i5-450M. Beware, that some designs may not feature the Turbo Boost or due to small cooling solutions, the TurboBoost may not trigger very often. Therefore, the performance could be worse.

The 32nm cpu cores of the Westmere generation can also process some new instructions to accelerate AES encryptions. Modern applications that support AES encoding can profit significantly using the new instructions (e.g. the Communications Suite test in the PCMark Vantage boosts up to 70% using AES in the faster Core i5-520M).

The integrated Intel Graphics Media Accelerator HD (GMA HD) graphics card is between 266-566 MHz (Turbo Boost) and therefore the base speed is clearly below the non low voltage versions. The performance should still be a lot faster than the old GMA 4500MHD.

The power consumption of 25 Watt TDP (max.) counts for the whole package and therefore it is clearly better than the 25 Watt TDP of the Core 2 Duo P-series (CPU alone).

SeriesIntel Core i7
CodenameArrandale

Series: Core i7 Arrandale

Intel Core i7-640M compare2.8 - 3.46 GHz2 / 4 cores4 MB L3
Intel Core i7-620M compare2.66 - 3.33 GHz2 / 4 cores4 MB L3
Intel Core i7-660LM « 2.27 - 3.07 GHz2 / 4 cores4 MB L3
Intel Core i7-640LM compare2.13 - 2.93 GHz2 / 4 cores4 MB L3
Intel Core i7-620LM compare2 - 2.8 GHz2 / 4 cores4 MB L3
Intel Core i7-680UM compare1.47 - 2.53 GHz2 / 4 cores4 MB L3
Intel Core i7-660UM compare1.33 - 2.4 GHz2 / 4 cores4 MB L3
Intel Core i7-640UM compare1.2 - 2.27 GHz2 / 4 cores4 MB L3
Intel Core i7-620UM compare1.06 - 2.13 GHz2 / 4 cores4 MB L3
Clock Rate2267 - 3067 MHz
Front Side Bus2500
Level 2 Cache512 KB
Level 3 Cache4 MB
Number of Cores / Threads2 / 4
Power Consumption (TDP = Thermal Design Power)25 Watt
Transistor Count382+177 Million
Manufacturing Technology32 nm
Die Size81+177 mm2
Max. Temperature105 °C
SocketBGA1288
FeaturesTurbo Boost (2.93 GHz max), Hyper Threading, Enhanced Speedstep, integrated GMA HD 266-566MHz
64 Bit64 Bit support
Architecturex86
Starting Price$346 U.S.
Announcement Date09/26/2010
Product Link (external)ark.intel.com

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#5 getting avg benchmarks for device 1277 +0.002s ... 0.017s

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Benchmarklist of all known CPUs that are used in laptops (desktop and laptop CPUs)

Other CPUs of the series Core i7

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» Intel Core i7-8709G
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» Intel Core i7-8706G
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» Intel Core i7-6920HQ
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» Intel Core i7-5950HQ
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» Intel Core i7-4930MX
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» Intel Core i7-6970HQ
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» Intel Core i7-6870HQ
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» Intel Core i7-4980HQ
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» Intel Core i7-4910MQ
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» Intel Core i7-5700HQ
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» Intel Core i7-6820HK
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» Intel Core i7-6820HQ
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» Intel Core i7-6770HQ
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» Intel Core i7-4900MQ
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» Intel Core i7-4960HQ
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» Intel Core i7-4720HQ
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» Intel Core i7-3840QM
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» Intel Core i7-4850HQ
   4x 2.3 GHz - 3.5 GHz
» Intel Core i7-4710HQ
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» Intel Core i7-4710MQ
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» Intel Core i7-8565U
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» Intel Core i7-4770HQ
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» Intel Core i7-3820QM
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» Intel Core i7-3740QM
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» Intel Core i7-3720QM
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   2x 2.8 GHz - 3.5 GHz
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» Intel Core i7-5550U
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   2x 2.1 GHz - 3.3 GHz
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   2x 2.8 GHz - 3.46 GHz
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   4x 1.73 GHz - 3.06 GHz
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   4x 1.73 GHz - 2.93 GHz
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» Intel Core i7-660LM
   2x 2.27 GHz - 3.07 GHz
» Intel Core i7-2637M
   2x 1.7 GHz - 2.8 GHz
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   2x 1.6 GHz - 2.7 GHz
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» Intel Core i7-640LM
   2x 2.13 GHz - 2.93 GHz
» Intel Core i7-620LM
   2x 2 GHz - 2.8 GHz
» Intel Core i7-680UM
   2x 1.47 GHz - 2.53 GHz
» Intel Core i7-660UM
   2x 1.33 GHz - 2.4 GHz
» Intel Core i7-640UM
   2x 1.2 GHz - 2.27 GHz
» Intel Core i7-620UM
   2x 1.06 GHz - 2.13 GHz

Surrounding CPUs

+ Intel Pentium 3560M
   2x 2.4 GHz
+ Intel Core i3-2330M
   2x 2.2 GHz
+ Intel Core i3-2328M
   2x 2.2 GHz
+ Intel Pentium 2030M
   2x 2.5 GHz
+ Intel Pentium 3550M
   2x 2.3 GHz
» Intel Core i7-660LM
   2x 2.27 GHz - 3.07 GHz
- Intel Core 2 Extreme X7900
   2x 2.8 GHz
- Intel Core 2 Quad Q9100
   4x 2.26 GHz
- Intel Core i5-3317U
   2x 1.7 GHz - 2.6 GHz
- Intel Celeron N5095
   4x 2 GHz - 2.9 GHz
- Intel Celeron N5105
   4x 2 GHz - 2.9 GHz
> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > Benchmarks / Tech > Notebook Processors > Intel Core i7 > Intel Core i7 660LM Notebook Processor
Klaus Hinum, 2010-09-27 (Update: 2012-05-26)